Corner bracket for assembling boxes



FIG. 1 is a front perspective view of the corner bracket for assembling boxes showing my new design;

FIG. 2 is a left-side elevational view with the right side being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a corner bracket for assembling boxes, as shown and described. 